O.K. This is not an anti-something post or thread it's just to show my way which is no doubt similar to some other's ways and different to 'internal' or bagua type ways.

I have seen descriptions of unbendable arm for example which as far as I know came from shin shin toitsu in the Aikido world but has been described by others in terms of tendons and muscles and sinews etc. So maybe that's how certain people see it and do it but it's not how I do it and neither is it how they do it in Ki Aikido for example.

Plus unbendable arm is not an arm that doesn't bend either for that straight arm is just the exercise for practice. It's just a flow like water through a hosepipe.